I've just checked Overdrive at several of my libraries, and it seems the filtering options have disappeared. I used to be able to limit my search to ebooks and then by Language, Publisher, etc.
Now when I look at Recent Ebook Additions, I only see see the 2 dropdown menus for Show Me (My Library's Collection, etc.) and Sort By (Added to Site, Most Popular, etc.)
No further filters appear underneath those two choices. Am I missing something? If this is a change, it's not a very useful one.